4121931988 has 24 divisors (see below), whose sum is σ = 7466117120. Its totient is φ = 1989113760.

The previous prime is 4121931967. The next prime is 4121932033. The reversal of 4121931988 is 8891391214.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1693 + ... + 90811.

Almost surely, 2^4121931988 is an apocalyptic number.

It is an amenable number.

4121931988 is a deficient number, since it is larger than the sum of its proper divisors (3344185132).

4121931988 is a wasteful number, since it uses less digits than its factorization.

4121931988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89527 (or 89525 counting only the distinct ones).

The product of its digits is 124416, while the sum is 46.

The square root of 4121931988 is about 64202.2740095707. The cubic root of 4121931988 is about 1603.3694601678.

The spelling of 4121931988 in words is "four billion, one hundred twenty-one million, nine hundred thirty-one thousand, nine hundred eighty-eight".